Light
Common expressions
a light bulb
switch the light on / off
leave the light on
the light comes on
a light switch
switch off the light
the light is on / off
the light goes out
Exercises
Common expressions
I switched on the light by my bed and read for about an hour.
Don't forget to switch the lights off when you go out.
The streetlights come on at about 7 o’clock at this time of year.
You left the light on in the bathroom all night again!
He must be in. The light in his room is still on.
It was so dark that I couldn't find the light switch.
I had to stand on a chair to change the light bulb.